NPPES file of Aug 9, 2026

Mary Desiree Fiel-Gan, M.D.

Anatomic Pathology & Clinical Pathology Physician · East Hartford, CT

Mary Desiree Fiel-Gan, M.D. is an anatomic pathology & clinical pathology physician with a practice address in East Hartford, Connecticut, and NPI 1710968961, issued on Nov 7, 2005. Check the license (Connecticut 037621, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1710968961
Name
Mary Desiree Fiel-Gan
Credential
M.D.
Primary taxonomy
Anatomic Pathology & Clinical Pathology Physician 207ZP0102X
License number
037621 CT
Self-reported in NPPES; status is on the state search
Practice location
99 E River Dr, East Hartford, CT 06108
Phone
(860) 282-4133
Enumerated
Nov 7, 2005
Record last updated
Jun 21, 2024
Fax
(860) 289-0746
Medicaid ID
001376210 CT
Medicare enrollment
Enrolled (PECOS I20100702000086); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 99 E River Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. William Ahn, M.D.Anesthesiology Physician1568460418
  2. Raymond Anton, M.D.Anesthesiology Physician1518951508
  3. Craig Bonanni, M.D.Anesthesiology Physician1245216472
  4. Erin Bower, CRNACertified Registered Nurse Anesthetist1265876304
  5. James Brakoniecki, M.D.Anesthesiology Physician1669460176
  6. April Burke, CRNACertified Registered Nurse Anesthetist1164775474

Verify Mary Desiree Fiel-Gan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersConnecticut Medical Examining Board
    Search for license 037621
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Hartford Pathology Associates PCNorwich, CT

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mary Desiree Fiel-Gan among 212 anatomic pathology & clinical pathology physician records in Connecticut

Mary Desiree Fiel-Gan, M.D. is one of 212 anatomic pathology & clinical pathology physician records with a practice address in Connecticut. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 84% newer
  • In a Medicare fileYes · 65% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1989 · median 1999 among the 132 with a school on file
  • Record last updated2024 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0102X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

9 anatomic pathology & clinical pathology physician records list a practice address in East Hartford

They are 9 of the 976 NPPES records with a practice address in East Hartford, and 212 anatomic pathology & clinical pathology physician records in Connecticut.

The 8 anatomic pathology & clinical pathology physician records with the nearest ZIP codes

  1. Thomas Ciesielski, M.D.East Hartford, CT 061081972591477
  2. Joseph Digiuseppe, M.D.East Hartford, CT 061081104819382
  3. Mark Ludwig, M.D.East Hartford, CT 061081437130242
  4. Bela Mandavilli, M.D.East Hartford, CT 061081417948712
  5. Srinivas Mandavilli, M.D.East Hartford, CT 061081255312492
  6. Richard Muller, M.D.East Hartford, CT 061081629065271
  7. Edyta Rotundo, MDEast Hartford, CT 061081366615502
  8. Yanjun Su, M.D.East Hartford, CT 061081982685129

Common questions

What is Mary Desiree Fiel-Gan, M.D.'s NPI number?

Mary Desiree Fiel-Gan, M.D.'s National Provider Identifier (NPI) is 1710968961, issued on Nov 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mary Desiree Fiel-Gan, M.D. located?

The NPPES record lists a practice address at 99 E River Dr, East Hartford, CT, 06108. Phone: (860) 282-4133. Providers update this record themselves, so call before visiting.

How can I verify Mary Desiree Fiel-Gan, M.D.'s license?

NPPES lists Connecticut license number 037621, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.